INSTALL.varnish
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= Setting up Varnish for your Noosfero site
Varnish is a HTTP caching server, and using it together with Noosfero is highly
recommended. See http://www.varnish-cache.org/ for more information on Varnish.
Varnish can be set up to use with Noosfero with the following steps:
1) setup Noosfero with apache according to the INSTALL file. If you used the
Debian package to install noosfero, you don't need to do anything about this.
2) install Varnish
# apt-get install varnish
Install the RPAF apache module (or skip this step if not using apache):
# apt-get install libapache2-mod-rpaf
3) Change Apache to listen on port 8080 instead of 80
3a) Edit /etc/apache2/ports.conf, and:
* change 'NameVirtualHost *:80' to 'NameVirtualHost *:8080'
* change 'Listen 80' to 'Listen 127.0.0.1:8080'
3b) Edit /etc/apache2/sites-enabled/*, and change '<VirtualHost *:80>' to
'<VirtualHost *:8080>'
3c) Restart apache
# invoke-rc.d apache2 restart
4) Varnish configuration
4a) Edit /etc/default/varnish
* change the line that says "START=no" to say "START=yes"
* change '-a :6081' to '-a :80'
4b) Edit /etc/varnish/default.vcl and add the following lines at the end:
include "/etc/noosfero/varnish-noosfero.vcl";
include "/etc/noosfero/varnish-accept-language.vcl";
On manual installations, change "/etc/noosfero/*" to
"{Rails.root}/etc/noosfero/*"
NOTE: it is very important that the *.vcl files are included in that order,
i.e. *first* include "varnish-noosfero.vcl", and *after*
"noosfero-accept-language.cvl".
4c) Restart Varnish
# invoke-rc.d varnish restart
5) Enable varnish logging:
5a) Edit /etc/default/varnishncsa and uncomment the line that contains:
VARNISHNCSA_ENABLED=1
The varnish log will be written to /var/log/varnish/varnishncsa.log in an
apache-compatible format. You should change your statistics generation software
(e.g. awstats) to use that instead of apache logs.
5b) Restart Varnish Logging service
# invoke-rc.d varnishncsa restart
Thanks to Cosimo Streppone for varnish-accept-language. See
http://github.com/cosimo/varnish-accept-language for more information.